FANUC A06B-6096-H301 Servo Amplifier 3-Axis

A06B-6096-H301 FANUC 3‑Axis Servo Amplifier

Product Introduction

The FANUC A06B-6096-H301 servo amplifier module offers three independent axes within a single enclosure. This tri‑axis design significantly reduces cabinet space requirements and simplifies system wiring compared to using three separate single‑axis drives. Specifically, this unit controls the L‑axis, M‑axis, and N‑axis motors, each delivering a rated output current of 3 A.

This servo amplifier accepts a DC input voltage ranging from 283 to 325 VDC, typically supplied by a FANUC power supply module. The maximum output voltage reaches 230 VAC, with a total power rating of 1.85 kW. Furthermore, the module supports a wide output frequency range suitable for both spindle and feed‑axis applications, though the exact frequency depends on motor parameters and CNC settings.

The A06B-6096-H301 operates within an ambient temperature range of 0°C to 40°C. While slightly narrower than some other models, this thermal specification matches standard climate‑controlled workshop environments. Moreover, the unit withstands vibration up to 5G and functions at altitudes up to 1,000 meters above sea level, making it suitable for most factory installations, including elevated mezzanines.

Built‑in forced‑air cooling keeps internal power semiconductors within safe operating limits. Meanwhile, five layers of protection—overcurrent, overvoltage, overheating, and short circuit—safeguard both the servo drive and the connected motors. These protective features automatically trigger fault shutdowns when abnormal conditions occur, preventing costly collateral damage.

Technical Specifications (Electrical)

• Manufacturer: FANUC

• Part Number: A06B-6096-H301

• Number of Axes: 3 (L, M, N)

• Input Voltage: 283–325 VDC

• Output Voltage: 230 VAC (maximum)

• Output Current per Axis: 3 A (L/M/N)

• Total Power Rating: 1.85 kW

• Cooling Method: Built‑in fan (forced air)

• Protection: Overcurrent, overvoltage, overheating, short circuit

This module integrates seamlessly with FANUC CNC controllers via high‑speed serial communication. Additionally, the servo amplifier supports absolute and incremental encoder feedback, providing precise position and velocity control. For multi‑axis coordination, the built‑in processor handles real‑time current loops independently for each axis, minimizing cross‑coupling interference.

Mechanical & Environmental Parameters

• Weight: 9.98 kg (22.00 lbs)

• Operating Temperature: 0°C to 40°C

• Maximum Vibration: 5G

• Maximum Altitude: 1,000 meters above sea level

• Humidity: ≤90% RH (non‑condensing)

• Mounting: Vertical panel or rack mount

The robust enclosure protects internal components from dust and incidental metal chips typical of machining environments. However, because the cooling fan draws air from the surroundings, regular cleaning of the intake grille is essential. Operate this FANUC A06B-6096-H301 only within the specified temperature and altitude limits, as exceeding these may reduce output capacity or trigger thermal alarms prematurely.

Installation Guidelines

Start by mounting the A06B-6096-H301 vertically on a flat, grounded metal plate. Use M6 screws through the four mounting ears, ensuring the unit sits level and stable. Maintain at least 150 mm clearance above and below the fan vents for unobstructed airflow. Improper clearance can cause recirculation of hot air, leading to overheating even within the 0–40°C ambient range.

For electrical connections, follow this sequence:

1. Connect the DC bus cables from the power supply to the P and N terminals.

2. Wire each motor's U, V, W phases to the corresponding L/M/N output terminals.

3. Attach encoder feedback cables to CN2 (L), CN3 (M), and CN4 (N) ports.

4. Ground the frame terminal securely to the cabinet earth bar.

5. Double‑check all torque values: 1.2 N·m for power terminals, 0.5 N·m for signal connectors.

Additionally, separate power and signal cables by at least 150 mm to avoid electromagnetic interference. For installations with long motor cables (over 15 meters), consider adding output reactors to suppress reflected waves.

Packaging & Shipping Information

Each servo amplifier module ships in a heavy‑duty double‑wall carton with custom foam inserts. The package includes:

• A06B-6096-H301 amplifier unit (1 pc)

• Mounting hardware kit (screws and washers)

• Terminal cover plates (pre‑installed)

• Quick‑start connection diagram

• Silica gel desiccant bag

Note: Motor power cables, encoder extension cables, and external fuses are sold separately.
All orders are dispatched via FedEx, UPS, or DHL with full tracking and insurance. Delivery typically takes 4–9 business days worldwide, depending on customs processing.

Frequently Asked Questions (FAQ)

Q1: Can the A06B-6096-H301 run with only one or two axes active?
Yes, the servo drive operates perfectly with one or two axes connected. Simply leave unused terminals open and disable the corresponding axis via parameter settings to prevent unloaded fault alarms.

Q2: What happens if the ambient temperature exceeds 40°C?
The module will reduce its output current automatically to protect internal components. Above 45°C, the FANUC amplifier may shut down entirely. For hot environments, add external forced ventilation or air conditioning to the cabinet.

Q3: Is this unit compatible with 200‑240 VAC input directly?
No, the A06B-6096-H301 requires a DC input (283–325 VDC). You must use a separate FANUC power supply module (like the A06B‑6087 series) to convert AC mains into the correct DC bus voltage.

Q4: How do I diagnose a short circuit alarm?
First, power down and disconnect all motor cables. Then measure resistance between each phase (U‑V, V‑W, W‑U). A reading near zero ohms indicates a short in the wiring or motor. If the cable is clear, the internal IGBT may have failed—consult FANUC service for repair.

Q5: Can I use this amplifier with non‑FANUC motors?
While technically possible with compatible encoder types, the servo amplifier is optimized for FANUC motors. Non‑FANUC motors may require custom tuning parameters and could not achieve full performance or protection coverage.